37 Miss. Code R. § 1-7501-04002-301
TYPE 1 - FREEWAY - A freeway is defined as a highway or section thereof with full control of access which has been designated as such by order of the Commission. On freeways, no vehicular access from the abutting property to the through traffic lanes is permitted except at interchanges constructed at intersecting streets and highways. Frontage roads may be constructed on fully controlled access highways and, where constructed, vehicular access from the abutting property to the frontage road will be permitted. The frontage road will then carry such traffic to a cross road or street with an interchange for entry into the through traffic lanes. Pedestrians are not permitted to cross controlled access highways. Utility lines may be located on the right of way of fully controlled access highways when such locations conform to the requirements of the Department's Rules. Freeways may be developed by stage construction.
37 Miss. Code. R. § 1-7501-04002-301